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East Front grizzly studies - Aune, Keith, 1954 - (Montana Dept. of Fish, Wildlife & Parks, 1987)

Eastern forest tree diseases in relation to stand improvement - Hepting, George H. (George Henry), 1907 -1988 (U.S. Govt. Print. Off, 1934)

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The ecological characteristics and historical distribution of the family Cervidae in Alberta - Dwyner, Mary V. (1969)

Ecological genetics of Pinus contorta in the Upper Snake River Basin of eastern Idaho and Wyoming - Intermountain Research Station (Ogden, Utah) (USDA Forest Service, Intermountain Research Station, 1986)

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Ecological investigations upon the germination and early growth of forest trees - Boerker, Richard H. D. (Richard Hans Douai), 1887 -1966 (1916)

Ecological land classification and vegetation description of Upper Bob Creek Ecological Reserve - Cornish, Beth. (Alberta Environmental Protection, Resource Data Division, 1997)

Ecological land classification of Beauvais Lake Provincial Park study area - Alberta. Alberta Environment. (Alberta Environment, 2001)

Ecological land classification of Carson-Pegasus Provincial Park - Alberta. Alberta Environment. (Alberta Environment, 1999)

An ecological study of the Douglas fir vegetation in Banff and Jasper National Parks - Stringer, Paul William. (1966)

An ecological study of wildlife and fisheries in the Pembina and Sturgeon River Basins - Alberta. Dept. of Environment. Water Resources Division, (Government of Alberta, 1971)

Ecological types of the upper Gunnison Basin : review draft - Johnston, Barry C. (U.S. Department of Agriculture, Forest Service, Grand Mesa-Uncompahgre-Gunnison National Forests, 1997)

Ecologically significant wetlands in the Missouri headwaters : Jefferson, lower Madison, lower Gallatin, and upper Red Rock River watersheds - Montana Natural Heritage Program. (Montana Natural Heritage Program, 2004)

Ecologically significant wetlands in the Upper Yellowstone River watershed : including the Boulder, Clarks Fork Yellowstone, Shields, and Stillwater River drainages - United States. Environmental Protection Agency. (Montana Natural Heritage Program, 2001)

Ecology and conservation of wolves in a changing world - Carbyn, Ludwig N. 1941 - (Canadian Circumpolar Institute, University of Alberta, 1995)

Ecology and management of larix forests : a look ahead : proceedings of an international symposium, Whitefish, Montana, U.S.A. October 5-9, 1992 - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1995)

Ecology of feral horses in western Alberta - University of Alberta. (University of Alberta, 1978)

Ecology of Shiras moose in Montana : big game research projects W-98-R and W-120-R, January 4, 1965-December 31, 1973 : final report - Montana. Department of Fish; Game (The Department, 1974)

Ecology of the Columbian ground squirrel in the Sheep River region - University of Alberta. Department of Zoology. (1962)

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The effect of phloem thickness on heterozygosity in laboratory reared mountain pine beetles - Amman, Gene D. (Intermountain Research Station, 1995)

The effect of ultraviolet (UV-B) radiation on Englemann spruce and lodgepole pine seedlings : final report - Kaufmann, M. R. (Rocky Mountain Forest and Range Experiment Station, U.S. Forest Service, 1970)

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Effects of Arceuthobium americanum on twig growth of Pinus contorta - Pacific Northwest Research Station (Portland, Or.) (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1986)

Effects of bifenox, DCPA, and napropamide on ectomycorrhizal development of conifer seedlings in central and northern Rocky Mountain nurseries - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1985)

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The effects of fire and other disturbances on small mammals and their predators : an annotated bibliography - Ream, Catherine H. (Intermountain Forest and Range Experiment Station, USDA, Forest Service, 1981)

Effects of fire on the subalpine range of Rocky Mountain bighorn sheep in Alberta - Bentz, Jerry A. (University of Alberta, 1981)

Effects of nursery fertilizer and irrigation on ponderosa and lodgepole pine seedling size - Intermountain Research Station (Ogden, Utah) (U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1992)

Effects of stocking on site measurement and yield of second-growth ponderosa pine in the inland empire - Lynch, Donald W. (Intermountain Forest and Range Experiment Station, 1958)

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The elements of forestry, designed to afford information concerning the planting and care of forest trees for ornament or profit and giving suggestions upon the creation and care of woodlands with the view of securing the greatest benefit for the longest time, particularly adapted to the wants and conditions of the United States - Hough, Franklin Benjamin, 1822 -1885 (R. Clarke, 1882)

The elements of forestry designed to afford information concerning the planting and care of forest trees for ornament or profit and giving suggestions upon the creation and care of woodlands with the view of securing the greatest benefit for the longest time, particularly adapted to the wants and conditions of the United States - Hough, Franklin Benjamin, 1822 -1885 (R. Clarke, 1882)

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Endangered plants and animals of Oregon - Bond, Carl E. (Agricultural Experiment Station, Oregon State University, 1966)

An Engelmann spruce seed source study in the central Rockies - Rocky Mountain Forest; Range Experiment Station (Fort Collins, Colo.) (Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1981)

Ensayo de integración de los conocimientos sobre el género Pinus en México - Eguiluz Piedra, Teobaldo (1978)

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